| United States Department of Health and Human Services |
52,041 |
| United States Department of Agriculture |
48,147 |
| Government of Ontario, Canada |
33,730 |
| University of Iowa |
32,180 |
| University of Michigan |
30,985 |
| The University of Georgia |
26,636 |
| Florida State University |
20,924 |
| University of Wisconsin-Madison |
20,922 |
| State of Minnesota |
20,229 |
| State of Connecticut |
19,850 |
| University of Minnesota |
19,779 |
| Government of Alberta |
18,369 |
| PricewaterhouseCoopers, LLP |
17,662 |
| University of Rochester |
17,303 |
| National Institutes of Health |
17,275 |
| Abbott Laboratories |
15,879 |
| New York University |
14,312 |
| Keller Williams |
14,086 |
| Arizona State University |
12,813 |
| State of Utah |
12,585 |
| RMIT University |
12,455 |
| Public Works and Government Services Canada (PWGSC) |
12,435 |
| CB Richard Ellis Group, Inc. |
12,362 |
| United States Department of Energy |
12,295 |
| Baylor College of Medicine |
12,186 |
| Indian Health Service |
12,097 |
| United States Air Force |
11,688 |
| Royal LePage Real Estate Services |
11,485 |
| Food & Drug Administration |
10,950 |
| Pennsylvania State University |
9,918 |
| United States National Forest Service |
9,899 |
| City College of NY |
9,678 |
| National University of Singapore |
9,578 |
| United States Navy |
9,049 |
| Duke University |
8,599 |
| University of British Columbia |
8,184 |
| State of California- Public Utilities Commission |
8,129 |
| North East ISD |
7,679 |
| University of Texas Health Science Center at San Antonio |
7,555 |
| Canadian Imperial Bank of Commerce |
7,085 |
| Veterans Health Administration |
6,940 |
| Weichert Realtors |
6,903 |
| State of New Hampshire |
6,888 |
| Fairfax County Public Schools |
6,513 |
| United States Department of Veterans Affairs |
6,396 |
| Community College of Baltimore County |
6,107 |
| Hilton Worldwide |
6,067 |
| United States Army |
6,062 |
| San Jose State University |
5,983 |
| GlaxoSmithKline plc. |
5,933 |
| University of California, Los Angeles |
5,923 |
| University of South Australia |
5,879 |
| UC Riverside |
5,878 |
| University of Wollongong |
5,724 |
| University of Colorado System |
5,681 |
| SunGard Data Systems Inc. |
5,571 |
| McGill University Health Center |
5,477 |
| State Government of Alaska |
5,432 |
| ERA Vacation Properties |
5,358 |
| SAP America, Inc. |
5,281 |
| Kent State University |
5,230 |
| University of Otago |
5,118 |
| Centers for Disease Control and Prevention |
5,065 |
| Marriott International, Inc. |
5,059 |
| Century 21 |
4,996 |
| HCA Inc. |
4,984 |
| Long & Foster Real Estate, Inc. |
4,841 |
| State of Texas (USA) |
4,840 |
| American International Group (AIG) |
4,771 |
| Government of Canada - Canadian Food Inspection Agency |
4,734 |
| State University of New York, University at Buffalo |
4,722 |
| Novartis Corporation |
4,712 |
| University of Victoria |
4,676 |
| Service Canada |
4,664 |
| University of Central Florida |
4,523 |
| Indiana State Government |
4,516 |
| US General Services Administration (GSA) |
4,419 |
| Prudential Financial, Inc. |
4,412 |
| Humber College |
4,365 |
| Prince William Sound Community College |
4,353 |
| University of Hawaii |
4,279 |
| Bristol-Myers Squibb Company |
4,224 |
| University of North Carolina |
4,166 |
| Case Western Reserve University |
4,148 |
| California Polytechnic State University, San Luis Obispo |
4,107 |
| United States Environmental Protection Agency |
4,104 |
| Windermere Services Company |
4,096 |
| City of Madison Metro School District |
4,076 |
| Boston Scientific Corporation |
4,064 |
| Columbia University |
4,029 |
| Xerox Corporation |
4,014 |
| Colliers International Property Consultants, Inc. |
4,009 |
| Subway |
4,001 |
| University of Chicago Hospitals |
3,998 |
| 3M Company |
3,997 |
| Princeton University |
3,979 |
| American Express Company |
3,888 |
| University of Puget Sound |
3,767 |
| Memorial Health Services |
3,728 |
| Deakin University |
3,671 |
| California Institute of Technology |
3,666 |
| Delaware Technical & Community College Central Office |
3,630 |
| AstraZeneca PLC |
3,593 |
| Georgia Southern University |
3,553 |
| Federal Government Of United Kingdom |
3,552 |
| University of Glasgow |
3,546 |
| BP British Petroleum |
3,518 |
| Johnson County Community College |
3,465 |
| New York Life Insurance Company |
3,450 |
| Eli Lilly and Company |
3,334 |
| DePaul University |
3,300 |
| Primerica |
3,279 |
| Tenet Healthcare Corporation |
3,277 |
| Farmers Insurance Group, Inc. |
3,248 |
| State of Michigan |
3,210 |
| Indiana University-Purdue University at Fort Wayne |
3,203 |
| St Petersburg College |
3,202 |
| Suffolk County Community College |
3,190 |
| Roche Holding Ltd |
3,184 |
| University of Nevada, Las Vegas |
3,161 |
| University of Connecticut Health Center |
3,137 |
| University of Arkansas |
3,124 |
| Alcatel-Lucent Technologies Inc. |
3,048 |
| City of Richmond - Virginia |
3,029 |
| University of Texas Arlington |
3,025 |
| The College of William & Mary |
2,987 |
| Barclays Capital Inc. |
2,960 |
| Genzyme Corporation |
2,954 |
| McKesson Corporation |
2,917 |
| University of Cape Town |
2,849 |
| Western Michigan University |
2,807 |
| Commonwealth of Massachusetts |
2,792 |
| EMCOR Group, Inc. |
2,755 |
| Procter & Gamble Company |
2,670 |
| Trinity College Dublin |
2,654 |
| Baxter International Inc. |
2,614 |
| University Of Canberra |
2,606 |
| CA INC |
2,567 |
| United States Department of the Treasury |
2,558 |
| Northumbria University |
2,549 |
| Bonneville Power Administration |
2,544 |
| Starwood Hotels and Resorts Worldwide, Inc. |
2,541 |
| Brown University |
2,519 |
| Unversity Of Bristol FRPERC |
2,502 |
| Takeda Pharmaceuticals North America, Inc. |
2,479 |
| University of Virginia |
2,442 |
| Tarrant County Junior College |
2,438 |
| The McGraw-Hill Companies, Inc. |
2,431 |
| Industry Canada |
2,417 |
| Lansing Community College |
2,384 |
| St. John's University |
2,379 |
| The University of Western Australia |
2,363 |
| Enterprise Rent-A-Car Company |
2,358 |
| International Paper |
2,346 |
| Fifth Third Bank |
2,323 |
| NetApp Inc |
2,313 |
| Board Education Prince George County |
2,312 |
| Gannett Co., Inc. |
2,307 |
| Chicago Cubs |
2,297 |
| Hofstra University |
2,272 |
| British Telecom Group Plc |
2,260 |
| Canadian Heritage |
2,255 |
| General Mills, Inc. |
2,254 |
| K&L Gates |
2,251 |
| University of Salford |
2,201 |
| Jones Lang LaSalle Incorporated |
2,177 |
| Commonwealth of Pennsylvania |
2,177 |
| UnitedHealth Group Incorporated |
2,164 |
| Bell Canada - Enterprise Group |
2,159 |
| United Parcel Service of America, Inc. |
2,151 |
| Ivy Tech Community College |
2,148 |
| City of Los Angeles |
2,143 |
| TIAA-CREF |
2,142 |
| ConocoPhillips Company |
2,141 |
| University of California Berkeley |
2,139 |
| Cushman |
2,133 |
| Prudential Realty |
2,115 |
| University of Colorado Hospital |
2,109 |
| LPL Financial |
2,104 |
| H&R Block |
2,098 |
| Colorado State University |
2,093 |
| University of Denver |
2,088 |
| California State Polytechnic University, Pomona |
2,043 |
| Pasadena City College |
2,039 |
| University & Community College System of Nevada |
2,035 |
| CVS / Caremark Corporation |
2,014 |
| DLA Piper |
1,999 |
| Tyson Foods, Inc. |
1,974 |
| BD (Becton, Dickinson and Company) |
1,937 |
| California State University, Los Angeles |
1,899 |
| DuPont |
1,897 |
| Yale University |
1,874 |
| Biogen Idec Inc. |
1,862 |
| Tyco Electronics |
1,856 |
| American Cancer Society, Inc. |
1,853 |
| The Hartford Financial Services Group, Inc. |
1,837 |
| Washington University in St. Louis |
1,836 |
| The Hearst Corporation |
1,819 |
| Dow Chemical Company |
1,818 |
| Algonquin College |
1,815 |
